Phenylalanine + Tyrosine Benefits and Nutrition Facts

Published on: 01/06/2022

High-containing Phenylalanine + Tyrosine Foods

Nutrient Content Reference
Chicken egg white, dried 8.26 8
Egg powder 4.45 4
Skimmed milk powder 3.87 4
Piglet 3.52 4
Catfish caviar is granular, salty 3.21 3
Emmental cheese, m.d.zh. 44% in dry. в-ве 3.13 3
Baltic cheese, m.dzh. 20% in dry. в-ве 3.08 3
Kostroma cheese, m.d.zh. 45% in dry. в-ве 2.95 3
Dutch cheese, bar cheese, m.d.zh. 45% in dry. в-ве 2.73 3
Chicken egg yolk, dried 2.66 3
Russian cheese, m.dzh. 50% in dry. в-ве 2.57 3
Poshekhon cheese, m.dzh. 45% in dry. в-ве 2.5 3
Cheddar cheese 31% fat, m.d. 50% in dry. в-ве 2.47 2
Swiss cheese, m.d.zh. 50% in dry. в-ве 2.46 2
Peanuts 2.39 2
Roquefort cheese 27.5% fat, m.d. 50% in dry. в-ве 2.25 2
Soviet cheese, m.d.zh. 50% in dry. в-ве 2.23 2
Dry cream 42.0% fat 2.04 2
Edible gelatin 2 2
Chicken breast (fillet) 1.96 2
Raw smoked sausage, Braunschweig 1.96 2
Berix 1.88 2
Low-fat cottage cheese, 0.6% fat 1.86 2
Chicken in its own juice, canned food 1.83 2
Raw smoked Olympic sausage 1.82 2
Servelat 1.82 2
Apricot, stone fruit seed 1.77 2
Antarctic shrimp (meat) boiled and frozen 1.77 2
Broiler chicken liver 1.75 2
Mustard, seed 1.72 2
Red-eyed 1.72 2
Peas, whole grains 1.7 2
Pork liver 1.68 2
Konina 2 cat. 1.67 2
Beef liver 1.66 2
Chicken liver 1.65 2
Chicken meat fried, quickly frozen 1.65 2
Chicken 2 cat. 1.65 2
Sardine is oceanic 1.65 2
Chicken leg 1.64 2
Cottage cheese 18% fat 1.64 2
Broiler chicken breast (fillet) 1.63 2
Zuban 1.62 2
Sesame seeds 1.6 2
Sunflower, sunflower seeds 1.59 2
Boiled and smoked sausage Moscow 1.59 2
Stavrida 1.56 2
Turkey 2 cat. 1.56 2
Pelamide 1.55 2
Veal 2 cat. 1.54 2

Nutrition Facts About Phenylalanine + Tyrosine

Tyrosine Hydroxylase: The Link Between Nutrition and Neurotransmitter Synthesis

Tyrosine Hydroxylase: An Essential Enzyme for Neurotransmitter Synthesis

Tyrosine hydroxylase is a key enzyme involved in the production of important neurotransmitters in the brain. This enzyme plays a crucial role in the synthesis of dopamine, norepinephrine, and epinephrine, which are essential for proper brain function and overall well-being.

The Role of Tyrosine Hydroxylase in Nutrition

Tyrosine hydroxylase is closely linked to nutrition as it requires the amino acid tyrosine as a substrate for neurotransmitter synthesis. Tyrosine is an essential amino acid that cannot be produced by the body and must be obtained through diet. Foods rich in tyrosine include dairy products, eggs, meat, fish, and certain plant-based sources like soybeans and almonds.

Regulating Tyrosine Hydroxylase Activity through Diet

Dietary factors can influence the activity of tyrosine hydroxylase and, consequently, the production of neurotransmitters. Several nutrients and compounds have been found to modulate the activity of this enzyme, including:

  • Vitamin C: This vitamin is essential for the conversion of tyrosine to dopamine, as it acts as a cofactor for tyrosine hydroxylase. Citrus fruits, strawberries, and leafy greens are excellent sources of vitamin C.
  • Iron: Iron is necessary for the proper functioning of tyrosine hydroxylase. Good sources of iron include red meat, poultry, fish, legumes, and fortified cereals.
  • Phenylalanine: This amino acid is converted to tyrosine in the body and serves as a precursor for neurotransmitter synthesis. Foods rich in phenylalanine include meat, fish, dairy products, and certain plant-based sources like soybeans and lentils.
  • Flavonoids: Certain flavonoids found in fruits, vegetables, and herbs have been shown to enhance the activity of tyrosine hydroxylase and promote the production of neurotransmitters. Examples of flavonoid-rich foods include blueberries, oranges, broccoli, and green tea.
  • Omega-3 fatty acids: These essential fats are important for brain health and have been found to increase the expression of tyrosine hydroxylase. Fatty fish like salmon, sardines, and trout are excellent sources of omega-3 fatty acids.

Implications for Diets and Recipes

Understanding the role of tyrosine hydroxylase in neurotransmitter synthesis can have important implications for diet and nutrition. Including foods rich in tyrosine, phenylalanine, vitamin C, iron, flavonoids, and omega-3 fatty acids can support the production of neurotransmitters and promote optimal brain function.

Here's a delicious recipe that incorporates several of these nutrients:

Blueberry Spinach Smoothie

  • 1 cup fresh or frozen blueberries
  • 1 cup baby spinach
  • 1 ripe banana
  • 1 tablespoon almond butter
  • 1 cup unsweetened almond milk
  • 1 tablespoon ground flaxseeds


  1. Combine all ingredients in a blender.
  2. Blend until smooth and creamy.
  3. Pour into a glass and enjoy!

This smoothie is packed with antioxidants from the blueberries, iron from the spinach, tyrosine from the almond butter, and omega-3 fatty acids from the flaxseeds. It's a nutritious and delicious way to support your brain health!


Tyrosine Hydroxylase: The Key Enzyme for Neurotransmitter Production

Tyrosine Hydroxylase: An Essential Enzyme for Neurotransmitter Production

Tyrosine hydroxylase is a crucial enzyme involved in the synthesis of several important neurotransmitters in the body. This enzyme plays a significant role in nutrition as it is responsible for converting the amino acid tyrosine into L-DOPA, which is a precursor for the production of dopamine, norepinephrine, and epinephrine.

The Role of Tyrosine Hydroxylase in Dopamine Production

Dopamine is a neurotransmitter that plays a vital role in various physiological functions, including mood regulation, motivation, and reward. Tyrosine hydroxylase is the rate-limiting enzyme in the synthesis of dopamine, as it catalyzes the conversion of tyrosine to L-DOPA. Without sufficient levels of tyrosine hydroxylase, the production of dopamine may be compromised, leading to imbalances in the brain and potential neurological disorders.

Tyrosine Hydroxylase and Norepinephrine Production

Norepinephrine, also known as noradrenaline, is another important neurotransmitter involved in the body's stress response and regulation of blood pressure. Tyrosine hydroxylase is responsible for converting tyrosine into L-DOPA, which is further metabolized to produce norepinephrine. Adequate levels of tyrosine hydroxylase are essential for maintaining proper norepinephrine levels and ensuring optimal physiological function.

The Impact of Tyrosine Hydroxylase on Epinephrine Synthesis

Epinephrine, commonly known as adrenaline, is a hormone and neurotransmitter that plays a crucial role in the body's fight-or-flight response. Tyrosine hydroxylase is involved in the conversion of tyrosine to L-DOPA, which is then metabolized to produce epinephrine. Without sufficient levels of tyrosine hydroxylase, the production of epinephrine may be compromised, affecting the body's ability to respond to stress and regulate various physiological processes.

Regulating Tyrosine Hydroxylase Activity through Nutrition

The activity of tyrosine hydroxylase can be influenced by various factors, including nutrition. Certain nutrients and dietary factors can affect the synthesis and availability of tyrosine, the amino acid required for tyrosine hydroxylase activity. Foods rich in tyrosine, such as poultry, fish, dairy products, and soy products, can provide the necessary building blocks for neurotransmitter synthesis.

Additionally, the cofactors required for tyrosine hydroxylase activity, such as iron, copper, and tetrahydrobiopterin (BH4), can be obtained through a balanced diet. Iron-rich foods like spinach, lentils, and red meat, as well as copper-rich foods like nuts, seeds, and shellfish, can support optimal tyrosine hydroxylase function.

Furthermore, maintaining stable blood sugar levels through a balanced diet can also support tyrosine hydroxylase activity. Fluctuations in blood sugar levels can impact neurotransmitter synthesis, including dopamine, which is dependent on tyrosine hydroxylase activity.


Tyrosine hydroxylase is a critical enzyme involved in the synthesis of neurotransmitters like dopamine, norepinephrine, and epinephrine. Its role in nutrition is essential, as it converts tyrosine into L-DOPA, a precursor for neurotransmitter production. Adequate levels of tyrosine hydroxylase are crucial for maintaining optimal brain function, mood regulation, stress response, and overall physiological well-being. By ensuring a balanced diet rich in tyrosine and the necessary cofactors, individuals can support healthy tyrosine hydroxylase activity and neurotransmitter synthesis.


Tyrosine Hydroxylase


Tyrosine Supplement

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